About the author from page 1: B. F. Skinner has been named (by Time magazine) 'the most influential of living American psychologists and the most controversial figure in the science of human behaviour'. He was born in Pennsylvania in 1904 and gained M.A. and Ph.D. degrees at Harvard. Since 1948 he has taught at Harvard, where he is now Edgar Pierce Professor of Psychology. The author of the classic Utopian novel Walden Two (1948), Professor Skinner is famous for his laboratory work with pigeons, bringing animal experimentation to a quantitative scientific level. He is known as the father of the teaching machine and programmed learning, and his inventions include the Air Crib, a mechanical baby-tender, and the Skinner Box, a research instrument designed to trace changes in animal behaviour. Among the many honours he has received are the National Science Award and the Distinguished Contribution Award of the American Psychological Association. Beyond Freedom and Dignity, the summary of his life's work in the scientific analysis of behaviour, has been called by Science News 'one of the most important happenings in twentieth century psychology'.